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Abstract <p>The root-mean-square radii of <InlineEquation ID="IEq3"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3531_Article_IEq3.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="8" /> </InlineMediaObject> <EquationSource Format="TEX">\({}^{8}\)</EquationSource> <!--NuclPhys2570007Demyanova-m3--> </InlineEquation>Li in the short-lived excited states were experimentally deduced from the analysis of <InlineEquation ID="IEq4"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3531_Article_IEq4.gif" Format="GIF" Height="17" Rendition="HTML" Resolution="72" Type="Linedraw" Width="49" /> </InlineMediaObject> <EquationSource Format="TEX">\({}^{8}\textrm{Li}+{}^{2}\)</EquationSource> <!--NuclPhys2570007Demyanova-m4--> </InlineEquation>H and <InlineEquation ID="IEq5"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3531_Article_IEq5.gif" Format="GIF" Height="17" Rendition="HTML" Resolution="72" Type="Linedraw" Width="54" /> </InlineMediaObject> <EquationSource Format="TEX">\({}^{8}\textrm{Li}+{}^{12}\)</EquationSource> <!--NuclPhys2570007Demyanova-m5--> </InlineEquation>C diffraction scattering. Differential cross sections of the elastic and inelastic scattering were analyzed by the Modified diffraction model (MDM). No significant radius enhancement was observed for the first excited state 0.98 MeV 1<InlineEquation ID="IEq6"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3531_Article_IEq6.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="11" /> </InlineMediaObject> <EquationSource Format="TEX">\({}^{+}\)</EquationSource> <!--NuclPhys2570007Demyanova-m6--> </InlineEquation>. At the same time 40<InlineEquation ID="IEq7"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3531_Article_IEq7.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="15" /> </InlineMediaObject> <EquationSource Format="TEX">\(\%\)</EquationSource> <!--NuclPhys2570007Demyanova-m7--> </InlineEquation> radius enhancement was estimated for the second excited state 2.26 MeV 3<InlineEquation ID="IEq8"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11450_2025_3531_Article_IEq6.gif" Format="GIF" Height="10" Rendition="HTML" Resolution="72" Type="Linedraw" Width="11" /> </InlineMediaObject> <EquationSource Format="TEX">\({}^{+}\)</EquationSource> <!--NuclPhys2570007Demyanova-m8--> </InlineEquation>. This result is argument to possible halo structure of this state.</p>

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Study of the \({}^{{8}}\)Li Low-Lying Excited States

  • 期刊论文

  • 发表日期：

    2025年2月1日

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  • A. S. Demyanova,
  • A. N. Danilov,
  • S. A. Goncharov,
  • N. T. Burtebayev,
  • V. I. Starastsin,
  • T. I. Leonova

摘要

Abstract

The root-mean-square radii of \({}^{8}\) Li in the short-lived excited states were experimentally deduced from the analysis of \({}^{8}\textrm{Li}+{}^{2}\) H and \({}^{8}\textrm{Li}+{}^{12}\) C diffraction scattering. Differential cross sections of the elastic and inelastic scattering were analyzed by the Modified diffraction model (MDM). No significant radius enhancement was observed for the first excited state 0.98 MeV 1 \({}^{+}\) . At the same time 40 \(\%\) radius enhancement was estimated for the second excited state 2.26 MeV 3 \({}^{+}\) . This result is argument to possible halo structure of this state.